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Raspberry Pi 3: debug info, how to fix?

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  • jsulmJ jsulm

    @JiujiuTong said in Qt on rpi3 , debug info ,how to fix?:

    skipping incompatible /usr/lib/libpthread.so

    You are linking against x86 libraries installed in your host machine! You need to link against libraries for your target device since you're cross-compiling.

    J Offline
    J Offline
    JiujiuTong
    wrote on last edited by
    #25

    @jsulm
    my host machine is x64 , i don't kown what to do.
    can you tell me how to link it please? i'm following the instructures descripted by :
    http://wiki.qt.io/RaspberryPi2EGLFS
    can you give me some instructions please!,thank you very much

    jsulmJ 1 Reply Last reply
    0
    • J JiujiuTong

      @jsulm
      my host machine is x64 , i don't kown what to do.
      can you tell me how to link it please? i'm following the instructures descripted by :
      http://wiki.qt.io/RaspberryPi2EGLFS
      can you give me some instructions please!,thank you very much

      jsulmJ Offline
      jsulmJ Offline
      jsulm
      Lifetime Qt Champion
      wrote on last edited by
      #26

      @JiujiuTong How are you building? Can you show your configure call? Does your sysroot contain all needed libraries?

      https://forum.qt.io/topic/113070/qt-code-of-conduct

      J 1 Reply Last reply
      0
      • jsulmJ jsulm

        @JiujiuTong How are you building? Can you show your configure call? Does your sysroot contain all needed libraries?

        J Offline
        J Offline
        JiujiuTong
        wrote on last edited by
        #27

        @jsulm
        i,m using cross compile,and my configure is :
        ./configure -release -opengl es2 -skip webengine -device linux-rasp-pi2-g++
        -device-option CROSS_COMPILE=~/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf-
        -sysroot ~/raspi/sysroot -opensource -confirm-license -make libs
        -prefix /usr/local/qt5pi -extprefix ~/raspi/qt5pi -hostprefix ~/raspi/qt5 -v

        and i sysroot all the directory under raspi with "./sysroot-relativelinks.py sysroot"

        jsulmJ 1 Reply Last reply
        0
        • J JiujiuTong

          @jsulm
          i,m using cross compile,and my configure is :
          ./configure -release -opengl es2 -skip webengine -device linux-rasp-pi2-g++
          -device-option CROSS_COMPILE=~/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf-
          -sysroot ~/raspi/sysroot -opensource -confirm-license -make libs
          -prefix /usr/local/qt5pi -extprefix ~/raspi/qt5pi -hostprefix ~/raspi/qt5 -v

          and i sysroot all the directory under raspi with "./sysroot-relativelinks.py sysroot"

          jsulmJ Offline
          jsulmJ Offline
          jsulm
          Lifetime Qt Champion
          wrote on last edited by
          #28

          @JiujiuTong said in Qt on rpi3 , debug info ,how to fix?:

          ~/raspi/sysroot

          Did you check that your sysroot really contains what is needed (for example ~/raspi/sysroot/usr/lib)?

          https://forum.qt.io/topic/113070/qt-code-of-conduct

          J 1 Reply Last reply
          0
          • jsulmJ jsulm

            @JiujiuTong said in Qt on rpi3 , debug info ,how to fix?:

            ~/raspi/sysroot

            Did you check that your sysroot really contains what is needed (for example ~/raspi/sysroot/usr/lib)?

            J Offline
            J Offline
            JiujiuTong
            wrote on last edited by
            #29

            @jsulm
            i really don't know what libs are needed, so i do not check the Dir, the folder is created by :
            mkdir sysroot sysroot/usr sysroot/opt
            rsync -avz pi@raspberrypi.local:/lib sysroot
            rsync -avz pi@raspberrypi.local:/usr/include sysroot/usr
            rsync -avz pi@raspberrypi.local:/usr/lib sysroot/usr
            rsync -avz pi@raspberrypi.local:/opt/vc sysroot/opt
            and i checked that the output is right with no error.

            jsulmJ 1 Reply Last reply
            0
            • J JiujiuTong

              @jsulm
              i really don't know what libs are needed, so i do not check the Dir, the folder is created by :
              mkdir sysroot sysroot/usr sysroot/opt
              rsync -avz pi@raspberrypi.local:/lib sysroot
              rsync -avz pi@raspberrypi.local:/usr/include sysroot/usr
              rsync -avz pi@raspberrypi.local:/usr/lib sysroot/usr
              rsync -avz pi@raspberrypi.local:/opt/vc sysroot/opt
              and i checked that the output is right with no error.

              jsulmJ Offline
              jsulmJ Offline
              jsulm
              Lifetime Qt Champion
              wrote on last edited by
              #30

              @JiujiuTong Maybe you should try to call configure from a clean Qt source directory? Did you try to build Qt before for x86? Even better would be to do out of source build see http://stackoverflow.com/questions/1245011/how-to-build-qt-out-of-source

              https://forum.qt.io/topic/113070/qt-code-of-conduct

              J 2 Replies Last reply
              0
              • jsulmJ jsulm

                @JiujiuTong Maybe you should try to call configure from a clean Qt source directory? Did you try to build Qt before for x86? Even better would be to do out of source build see http://stackoverflow.com/questions/1245011/how-to-build-qt-out-of-source

                J Offline
                J Offline
                JiujiuTong
                wrote on last edited by
                #31

                @jsulm
                i confirm the source file is clean ,it is download from QT. i have built the QT under windows and centos x64, but not for x86.

                jsulmJ 1 Reply Last reply
                0
                • J JiujiuTong

                  @jsulm
                  i confirm the source file is clean ,it is download from QT. i have built the QT under windows and centos x64, but not for x86.

                  jsulmJ Offline
                  jsulmJ Offline
                  jsulm
                  Lifetime Qt Champion
                  wrote on last edited by
                  #32

                  @JiujiuTong What I mean with this "Did you try to build Qt before for x86?" is - did you build for x86 OR x86_64 before from the SAME source code tree? Because currently you're linking against your host libraries.

                  https://forum.qt.io/topic/113070/qt-code-of-conduct

                  1 Reply Last reply
                  0
                  • jsulmJ jsulm

                    @JiujiuTong Maybe you should try to call configure from a clean Qt source directory? Did you try to build Qt before for x86? Even better would be to do out of source build see http://stackoverflow.com/questions/1245011/how-to-build-qt-out-of-source

                    J Offline
                    J Offline
                    JiujiuTong
                    wrote on last edited by
                    #33

                    @jsulm
                    and i have tried to start a simple qt application(just a page with nothing showed ). it works well .
                    the source file is clean every time i try to build the QT, i will delete the source file and extract it from source file.

                    1 Reply Last reply
                    0
                    • J Offline
                      J Offline
                      JiujiuTong
                      wrote on last edited by
                      #34

                      @crasskitty
                      sorry , i don't understand what's your meanings

                      1 Reply Last reply
                      0
                      • sneubertS Offline
                        sneubertS Offline
                        sneubert
                        wrote on last edited by
                        #35

                        I dont´t know if you still have the debugging problem but to answer to your first post:

                        The qt libraries for rpi are written to the qt5pi directory, outside of the rsynced sysroot.
                        The debugger is looking in the local sysroot directory for the libraries if you debug remote targets.
                        So just tell gdb to load the libraries of your project from the debugging target.
                        In Qt Creator go to Options->Debugger GDB-Tab an insert set sysroot target:/ in "Additional Startup Commands"

                        J 1 Reply Last reply
                        0
                        • sneubertS sneubert

                          I dont´t know if you still have the debugging problem but to answer to your first post:

                          The qt libraries for rpi are written to the qt5pi directory, outside of the rsynced sysroot.
                          The debugger is looking in the local sysroot directory for the libraries if you debug remote targets.
                          So just tell gdb to load the libraries of your project from the debugging target.
                          In Qt Creator go to Options->Debugger GDB-Tab an insert set sysroot target:/ in "Additional Startup Commands"

                          J Offline
                          J Offline
                          JiujiuTong
                          wrote on last edited by JiujiuTong
                          #36

                          @sneubert
                          thank you for your answer!
                          should I just insert "set sysroot target:/" in "Additional Startup Commands" or replace string with my ENV value?
                          I can understand you description, but confused with "set sysroot target:/" i have set sysroot to "/home/tong/rasp/sysroot" in build&run -->kits-->sysroot. should the target:/ be the real path or something? thank you very much!

                          1 Reply Last reply
                          0
                          • sneubertS Offline
                            sneubertS Offline
                            sneubert
                            wrote on last edited by
                            #37

                            Leave you sysroot path in build&run --> kit --> sysroot the way it is, because this is needed for building your application. The set sysroot command I told you is just for gdb to instruct loading libraries remote. Use the exact string set sysroot target:/ only for "Additional Startup Commands" in Options->Debugger GDB-Tab.

                            J 1 Reply Last reply
                            0
                            • sneubertS sneubert

                              Leave you sysroot path in build&run --> kit --> sysroot the way it is, because this is needed for building your application. The set sysroot command I told you is just for gdb to instruct loading libraries remote. Use the exact string set sysroot target:/ only for "Additional Startup Commands" in Options->Debugger GDB-Tab.

                              J Offline
                              J Offline
                              JiujiuTong
                              wrote on last edited by
                              #38

                              @sneubert
                              OK, thank you !

                              1 Reply Last reply
                              0
                              • J JiujiuTong

                                @JiujiuTong said in Qt on rpi3 , debug info ,how to fix?:

                                @jsulm
                                i have check the files , both ligQt5OpenGL.so and libQt5Multimedia.so exists,
                                and the build output is still:
                                /home/tong/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/../lib/gcc/arm-linux-gnueabihf/4.8.3/../../../../arm-linux-gnueabihf/bin/ld: skipping incompatible /usr/lib/libpthread.so when searching for -lpthread
                                /home/tong/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/../lib/gcc/arm-linux-gnueabihf/4.8.3/../../../../arm-linux-gnueabihf/bin/ld: skipping incompatible /usr/lib/libm.so when searching for -lm
                                /home/tong/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/../lib/gcc/arm-linux-gnueabihf/4.8.3/../../../../arm-linux-gnueabihf/bin/ld: skipping incompatible /usr/lib/libc.so when searching for -lc
                                /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLContext::currentContext()@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::setAttributeArray(char const*, float const*, int, int)@Qt_5'
                                /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::hasOpenGLShaderPrograms(QGLContext const*)@Qt_5' /home/tong/raspi/sysroot/usr/lib/arm-linux-gnueabihf/libQt5OpenGL.so.5: undefined reference to QStaticTextItem::setFontEngine(QFontEngine*)'
                                /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::addShaderFromSourceCode(QFlags<QGLShader::ShaderTypeBit>, char const*)@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLContext::contextHandle() const@Qt_5'
                                /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::removeAllShaders()@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::enableAttributeArray(char const*)@Qt_5'
                                /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::link()@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::QGLShaderProgram(QGLContext const*, QObject*)@Qt_5'
                                /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::release()@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::setUniformValue(char const*, QMatrix4x4 const&)@Qt_5'
                                /home/tong/raspi/sysroot/usr/lib/libactivemq-cpp.so: undefined reference to std::__throw_out_of_range_fmt(char const*, ...)@GLIBCXX_3.4.20' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::~QGLShaderProgram()@Qt_5'
                                /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::log() const@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::setUniformValue(char const*, float const (*) [4])@Qt_5'
                                /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::setUniformValue(char const*, int)@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::bind()@Qt_5'
                                collect2: error: ld returned 1 exit status
                                make: *** [FMT] Error 1
                                20:57:20: The process "/usr/bin/make" exited with code 2.
                                Error while building/deploying project FMT (kit: rpi3)
                                The kit rpi3 has configuration issues which might be the root cause for this problem.
                                When executing step "Make"
                                @jsulm ,do you have any ideas? thank you !

                                J Offline
                                J Offline
                                JiujiuTong
                                wrote on last edited by
                                #39

                                @SSGaist
                                can you help me out of this problem? thank you!
                                @jsulm
                                i have check the files , both ligQt5OpenGL.so and libQt5Multimedia.so exists,
                                and the build output is still:
                                /home/tong/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/../lib/gcc/arm-linux-gnueabihf/4.8.3/../../../../arm-linux-gnueabihf/bin/ld: skipping incompatible /usr/lib/libpthread.so when searching for -lpthread
                                /home/tong/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/../lib/gcc/arm-linux-gnueabihf/4.8.3/../../../../arm-linux-gnueabihf/bin/ld: skipping incompatible /usr/lib/libm.so when searching for -lm
                                /home/tong/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/../lib/gcc/arm-linux-gnueabihf/4.8.3/../../../../arm-linux-gnueabihf/bin/ld: skipping incompatible /usr/lib/libc.so when searching for -lc
                                /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLContext::currentContext()@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference toQGLShaderProgram::setAttributeArray(char const*, float const*, int, int)@Qt_5'
                                /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::hasOpenGLShaderPrograms(QGLContext const*)@Qt_5' /home/tong/raspi/sysroot/usr/lib/arm-linux-gnueabihf/libQt5OpenGL.so.5: undefined reference toQStaticTextItem::setFontEngine(QFontEngine*)'
                                /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::addShaderFromSourceCode(QFlagsQGLShader::ShaderTypeBit, char const*)@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference toQGLContext::contextHandle() const@Qt_5'
                                /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::removeAllShaders()@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference toQGLShaderProgram::enableAttributeArray(char const*)@Qt_5'
                                /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::link()@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference toQGLShaderProgram::QGLShaderProgram(QGLContext const*, QObject*)@Qt_5'
                                /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::release()@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference toQGLShaderProgram::setUniformValue(char const*, QMatrix4x4 const&)@Qt_5'
                                /home/tong/raspi/sysroot/usr/lib/libactivemq-cpp.so: undefined reference to std::__throw_out_of_range_fmt(char const*, ...)@GLIBCXX_3.4.20' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference toQGLShaderProgram::~QGLShaderProgram()@Qt_5'
                                /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::log() const@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference toQGLShaderProgram::setUniformValue(char const*, float const () [4])@Qt_5'
                                /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::setUniformValue(char const
                                , int)@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference toQGLShaderProgram::bind()@Qt_5'
                                collect2: error: ld returned 1 exit status

                                jsulmJ 2 Replies Last reply
                                0
                                • J JiujiuTong

                                  @SSGaist
                                  can you help me out of this problem? thank you!
                                  @jsulm
                                  i have check the files , both ligQt5OpenGL.so and libQt5Multimedia.so exists,
                                  and the build output is still:
                                  /home/tong/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/../lib/gcc/arm-linux-gnueabihf/4.8.3/../../../../arm-linux-gnueabihf/bin/ld: skipping incompatible /usr/lib/libpthread.so when searching for -lpthread
                                  /home/tong/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/../lib/gcc/arm-linux-gnueabihf/4.8.3/../../../../arm-linux-gnueabihf/bin/ld: skipping incompatible /usr/lib/libm.so when searching for -lm
                                  /home/tong/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/../lib/gcc/arm-linux-gnueabihf/4.8.3/../../../../arm-linux-gnueabihf/bin/ld: skipping incompatible /usr/lib/libc.so when searching for -lc
                                  /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLContext::currentContext()@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference toQGLShaderProgram::setAttributeArray(char const*, float const*, int, int)@Qt_5'
                                  /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::hasOpenGLShaderPrograms(QGLContext const*)@Qt_5' /home/tong/raspi/sysroot/usr/lib/arm-linux-gnueabihf/libQt5OpenGL.so.5: undefined reference toQStaticTextItem::setFontEngine(QFontEngine*)'
                                  /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::addShaderFromSourceCode(QFlagsQGLShader::ShaderTypeBit, char const*)@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference toQGLContext::contextHandle() const@Qt_5'
                                  /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::removeAllShaders()@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference toQGLShaderProgram::enableAttributeArray(char const*)@Qt_5'
                                  /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::link()@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference toQGLShaderProgram::QGLShaderProgram(QGLContext const*, QObject*)@Qt_5'
                                  /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::release()@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference toQGLShaderProgram::setUniformValue(char const*, QMatrix4x4 const&)@Qt_5'
                                  /home/tong/raspi/sysroot/usr/lib/libactivemq-cpp.so: undefined reference to std::__throw_out_of_range_fmt(char const*, ...)@GLIBCXX_3.4.20' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference toQGLShaderProgram::~QGLShaderProgram()@Qt_5'
                                  /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::log() const@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference toQGLShaderProgram::setUniformValue(char const*, float const () [4])@Qt_5'
                                  /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::setUniformValue(char const
                                  , int)@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference toQGLShaderProgram::bind()@Qt_5'
                                  collect2: error: ld returned 1 exit status

                                  jsulmJ Offline
                                  jsulmJ Offline
                                  jsulm
                                  Lifetime Qt Champion
                                  wrote on last edited by
                                  #40

                                  @JiujiuTong As I said "skipping incompatible" message means that the library is build for a different architecture. You're most probably mixing architectures.
                                  /usr/lib/libpthread.so - this looks like a path on your host PC. You cannot use libraries from your host PC (X86_64) to cross compile for ARM.

                                  https://forum.qt.io/topic/113070/qt-code-of-conduct

                                  J 1 Reply Last reply
                                  1
                                  • J JiujiuTong

                                    @SSGaist
                                    can you help me out of this problem? thank you!
                                    @jsulm
                                    i have check the files , both ligQt5OpenGL.so and libQt5Multimedia.so exists,
                                    and the build output is still:
                                    /home/tong/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/../lib/gcc/arm-linux-gnueabihf/4.8.3/../../../../arm-linux-gnueabihf/bin/ld: skipping incompatible /usr/lib/libpthread.so when searching for -lpthread
                                    /home/tong/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/../lib/gcc/arm-linux-gnueabihf/4.8.3/../../../../arm-linux-gnueabihf/bin/ld: skipping incompatible /usr/lib/libm.so when searching for -lm
                                    /home/tong/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/../lib/gcc/arm-linux-gnueabihf/4.8.3/../../../../arm-linux-gnueabihf/bin/ld: skipping incompatible /usr/lib/libc.so when searching for -lc
                                    /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLContext::currentContext()@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference toQGLShaderProgram::setAttributeArray(char const*, float const*, int, int)@Qt_5'
                                    /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::hasOpenGLShaderPrograms(QGLContext const*)@Qt_5' /home/tong/raspi/sysroot/usr/lib/arm-linux-gnueabihf/libQt5OpenGL.so.5: undefined reference toQStaticTextItem::setFontEngine(QFontEngine*)'
                                    /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::addShaderFromSourceCode(QFlagsQGLShader::ShaderTypeBit, char const*)@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference toQGLContext::contextHandle() const@Qt_5'
                                    /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::removeAllShaders()@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference toQGLShaderProgram::enableAttributeArray(char const*)@Qt_5'
                                    /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::link()@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference toQGLShaderProgram::QGLShaderProgram(QGLContext const*, QObject*)@Qt_5'
                                    /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::release()@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference toQGLShaderProgram::setUniformValue(char const*, QMatrix4x4 const&)@Qt_5'
                                    /home/tong/raspi/sysroot/usr/lib/libactivemq-cpp.so: undefined reference to std::__throw_out_of_range_fmt(char const*, ...)@GLIBCXX_3.4.20' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference toQGLShaderProgram::~QGLShaderProgram()@Qt_5'
                                    /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::log() const@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference toQGLShaderProgram::setUniformValue(char const*, float const () [4])@Qt_5'
                                    /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference to QGLShaderProgram::setUniformValue(char const
                                    , int)@Qt_5' /home/tong/raspi/qt5pi/lib/libQt5MultimediaWidgets.so: undefined reference toQGLShaderProgram::bind()@Qt_5'
                                    collect2: error: ld returned 1 exit status

                                    jsulmJ Offline
                                    jsulmJ Offline
                                    jsulm
                                    Lifetime Qt Champion
                                    wrote on last edited by
                                    #41

                                    @JiujiuTong Can you show your configure call?

                                    https://forum.qt.io/topic/113070/qt-code-of-conduct

                                    J 1 Reply Last reply
                                    0
                                    • jsulmJ jsulm

                                      @JiujiuTong Can you show your configure call?

                                      J Offline
                                      J Offline
                                      JiujiuTong
                                      wrote on last edited by JiujiuTong
                                      #42

                                      @jsulm
                                      my configure is :
                                      "./configure -release -opengl es2 -skip webengine -device linux-rasp-pi2-g++ -device-option CROSS_COMPILE=~/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf- -sysroot ~/raspi/sysroot -opensource -confirm-license -make libs -prefix /usr/local/qt5pi -extprefix ~/raspi/qt5pi -hostprefix ~/raspi/qt5 -v "
                                      my host is centos 7 x64, the target is raspberry pi3. thank you !

                                      jsulmJ 1 Reply Last reply
                                      0
                                      • J JiujiuTong

                                        @jsulm
                                        my configure is :
                                        "./configure -release -opengl es2 -skip webengine -device linux-rasp-pi2-g++ -device-option CROSS_COMPILE=~/raspi/tools/arm-bcm2708/gcc-linaro-arm-linux-gnueabihf-raspbian-x64/bin/arm-linux-gnueabihf- -sysroot ~/raspi/sysroot -opensource -confirm-license -make libs -prefix /usr/local/qt5pi -extprefix ~/raspi/qt5pi -hostprefix ~/raspi/qt5 -v "
                                        my host is centos 7 x64, the target is raspberry pi3. thank you !

                                        jsulmJ Offline
                                        jsulmJ Offline
                                        jsulm
                                        Lifetime Qt Champion
                                        wrote on last edited by
                                        #43

                                        @JiujiuTong Does your sysroot contain all that incompatible libraries (like libpthread.so)?

                                        https://forum.qt.io/topic/113070/qt-code-of-conduct

                                        J 1 Reply Last reply
                                        0
                                        • jsulmJ jsulm

                                          @JiujiuTong As I said "skipping incompatible" message means that the library is build for a different architecture. You're most probably mixing architectures.
                                          /usr/lib/libpthread.so - this looks like a path on your host PC. You cannot use libraries from your host PC (X86_64) to cross compile for ARM.

                                          J Offline
                                          J Offline
                                          JiujiuTong
                                          wrote on last edited by
                                          #44

                                          @jsulm
                                          can you explain more precise, i'm just following the ways list by:
                                          http://wiki.qt.io/RaspberryPi2EGLFS
                                          should i do something else, if so can you help me ?

                                          jsulmJ 1 Reply Last reply
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